Like this:

I see you have an MS in nuclear engineering.
How close do you think Thorium reactors are from production and do you think they are worth pursuing?
I think nuclear is the only viable replacement to fossil fuels.
Best regards, kbray.

I don’t know enough about thorium reactors to guess, but there is ample information online to make a preliminary judgement. Politics are key. Uranium/plutonium fission will likely be around for centuries, and it will become dominate for electricity and cogeneration-heat within this century. The politics of nuclear will eventually shift, and we will establish a thriving nuclear power industry with various reactor designs. I think we will eventually supply our power needs with controlled fusion of one sort or other, but it just doesn’t seem to be any closer than it was 60 years ago. The engineering is beyond us so far, even where we have proven the physics. For nearly 20 years, I’ve said that my grandchildren are unlikely to live to see fusion power generation commercialization.